English Dictionary |
ROCK DRILL
Pronunciation (US): | (GB): |
IPA (US): |
Dictionary entry overview: What does rock drill mean?
• ROCK DRILL (noun)
The noun ROCK DRILL has 1 sense:
1. a drill for penetrating rock
Familiarity information: ROCK DRILL used as a noun is very rare.
Dictionary entry details
Sense 1
Meaning:
A drill for penetrating rock
Classified under:
Nouns denoting man-made objects
Synonyms:
bore bit; borer; rock drill; stone drill
Hypernyms ("rock drill" is a kind of...):
drill (a tool with a sharp point and cutting edges for making holes in hard materials (usually rotating rapidly or by repeated blows))
Hyponyms (each of the following is a kind of "rock drill"):
cross bit (a rock drill having cruciform cutting edges; used in mining)
star drill (a steel rock drill with a star-shaped point that is used for making holes in stones or masonry; it is operated by hitting the end with a hammer while rotating it between blows)
straight-fluted drill; straight flute (a rock drill with flutes that are straight)
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